She lays down on her stomach... her ass positions itself right under your dick, and you start to get hard...
She's expecting a massage, but all you want to do it take your cock out and slide it into her.
Eventually she picks up on the vibe, and pushed her ass up in the air, just begging for it.

One of my hottest scenes- Sam Joiner @joinersamantha Massage Session!
We hit all the angles - and her pussy had me edging the WHOLE time!